In a large bowl, beat shortening until light and fluffy. Add eggs, one at a time, beating well after each addition (mixture will appear curdled). Beat in syrup and milk. Combine the flour, baking powder, salt, baking soda, ginger and allspice; add to shortening mixture and beat just until moistened. Stir in pumpkin and pineapple.

Fill paper-lined muffin cups two-thirds full. Bake at 350° for 20-25 minutes or until a toothpick inserted near the center comes out clean. Cool for 10 minutes before removing from pans to a wire rack to cool completely.

For frosting, in a small bowl, beat the cream cheese and butter until fluffy. Add confectioners' sugar; beat until smooth. Frost cupcakes.